1. Check Point Software Technologies
2. Cisco System Inc
3. Symantec Corporation
4. Sophos Holdings Ltd
5. Proofpoint
6. Trend Micro Incorporated
7. Broadcom Inc
8. Dell Inc
9. Fireeye Inc
10. Fortinet Inc
11. International Business Machines Corporation
12. Mcafee Llc
13. Microsoft Corporation
14. Oracle Corporation
15. Palo Alto Networks Inc